Hello everyone, can you tell me please, how can I erase data after submition? send post data to increase some value and then I reload page, it increase my number twice ... so thats the problem ... I hope it is clear .... thanks for answers

After first submittion echo shows my answer I wrote into text field, but after refreshing/reload page it should be empty or unknow, should not be? So this is that problem ... nothing happen, eho shows same value... you know why?

Sorry I can't see the problem and I have just tested your code and when I first submit, the value is echo'd out as expected and when I submit a second time it is not so it is working fine as far as I can see.